Question

# Problem 4.41 Write balanced molecular and net ionic equations for the following reactions, and identify the...

Problem 4.41

Write balanced molecular and net ionic equations for the following reactions, and identify the gas formed in each.

Part A

Solid cadmium sulfide reacts with an aqueous solution of sulfuric acid .

CdS(s)+H2SO4(aq)→CdSO4(aq)+H2S(aq)

Incorrect; Try Again

Part B

Ionic equation:

Part C

Identify the gas formed in this equation.

 HS CdS CdSO4 H2S

Correct

Part D

Solid magnesium carbonate reacts with an aqueous solution of perchloric acid.

Part E

Ionic equation:

A)
Molecular equation:
CdS(s) + H2SO4(aq) --> CdSO4 (aq) + H2S (g)

B)
Total ionic equation:
CdS (s) + 2H+ (aq) + SO42- (aq) -----> Cd2+ (aq) + SO42- (aq) + H2S (g)

Net ionic equation:
CdS (s) + 2H+ (aq) -----> Cd2+ (aq) + H2S (g)

C)
H2S is the gas

D)
molecular equation:
MgCO3(s) + 2 HClO4(aq) = Mg(ClO4)2(aq) + H2O(l) + CO2(g)

E)
Total ionic equation is:
MgCO3(s) + 2H+(aq) + 2ClO4-(aq) --> Mg2+(aq) + 2ClO4-(aq) + H2O(l) + CO2(g)
ionic equation is:
MgCO3(s) + 2H+(aq) = Mg2+(aq) + H2O(l) + CO2(g)